Screenshots
idle koi!
Ann Games · Published by Ann Games · Official site ↗
Last updated 29 Sept 2026
Hatch koi eggs, breed unique bloodlines, evolve rare traits, and send 3-koi teams into idle battles. Build a living collection where genes, rarity, lineage, and battle growth decide every koi's value.
Indie, Free To Play, Casual · 2026 · More free games
About this game
About this game:
idle koi! is a server-driven idle pet collection game about hatching, breeding, training, and battling magical koi. Every koi begins from an egg and grows through its own genes, appearance parts, rarity, skills, lineage, and battle history. Breed different bloodlines for a chance at mutation and leap evolution, then form 3-koi teams and send them on expeditions that keep fighting even while you manage other teams.
Key features:
- Hatch starter, bred, event, and limited genesis eggs.
- Breed koi with inherited body parts, fins, decorations, expressions, colors, and hidden genes.
- Chase rare leap evolutions that improve growth, power, and long-term value.
- Build up to five 3-koi battle teams for idle expeditions and replayable battle history.
- Trade and manage valuable koi through server-authoritative ownership, with Steam Inventory support planned for the Steam economy.
System Requirements
Will my PC run this? →Minimum
- OS: win10
- Processor: Intel Core-i3 or faster processor
- Memory: 8 GB RAM
- Graphics: Graphics card NVIDIA GTX 1060 or higher
- DirectX: Version 10
- Network: Broadband Internet connection
- Storage: 10 GB available space
- Sound Card: soundblaster
Recommended
- OS: win10
- Processor: Intel Core-i5 or faster processor
- Memory: 16 GB RAM
- Graphics: Graphics card NVIDIA GTX 1060 or higher
- DirectX: Version 12
- Network: Broadband Internet connection
- Storage: 20 GB available space
- Sound Card: soundblaster
